Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 28, 2020	Mar. 30, 2019		Mar. 31, 2018
Disaggregation of Revenue
Net revenue	$ 255,335	$ 273,722	$ 268,675	$ 264,042	$ 241,113	$ 233,700	$ 241,530	$ 246,403	$ 1,061,774	$ 962,746		$ 871,235
Factory-built housing
Disaggregation of Revenue
Net revenue									999,340	905,726		815,519
Financial Services
Disaggregation of Revenue
Net revenue									62,434	57,020		55,716
Site improvements on Retail Sales
Disaggregation of Revenue
Net revenue									30,000	24,900		$ 21,200
HUD Code | Factory-built housing
Disaggregation of Revenue
Net revenue									813,074	727,950
Modular | Factory-built housing
Disaggregation of Revenue
Net revenue									84,498	90,636
Park Model RVs | Factory-built housing
Disaggregation of Revenue
Net revenue									46,427	38,057
Factory-built housing, other | Factory-built housing
Disaggregation of Revenue
Net revenue									55,341	49,083	[1]
Insurance Agency Commissions | Financial Services
Disaggregation of Revenue
Net revenue									3,352	3,065
Financial service, other | Financial Services
Disaggregation of Revenue
Net revenue									$ 59,082	$ 53,955

[1] Other factory-built housing revenue from ancillary products and services including used homes, freight and other services.